Jets, collimated bunches of hadrons that result from the branching of energetic quarks or gluons and the subsequent hadronization of the fragments, are pivotal objects in collider physics. They provide a proxy for the fundamental degrees of freedom of Quantum Chromodynamics (QCD) and their study allows for stringent tests of the perturbative calculability of QCD dynamics. The precision understanding of their rich internal structure, usually referred to as jet sub-structure, is instrumental for tests of the Standard Model and in searches for physics beyond it [1]}, [2]}, [3]}, [4]}, [5]}, [6]}, [7]}, [8]}.
